update class attribute regex (#125)

Author: bradlc

src/lsp/providers/completionProvider.ts

@@ -126,7 +126,7 @@ function provideClassAttributeCompletions(
     end: position,
   })
 
-  const match = findLast(/[\s:]class(?:Name)?=['"`{]/gi, str)
+  const match = findLast(/(?:\b|:)class(?:Name)?=['"`{]/gi, str)
 
   if (match === null) {
     return null

src/lsp/util/find.ts

@@ -101,7 +101,7 @@ export function findClassListsInHtmlRange(
   range: Range
 ): DocumentClassList[] {
   const text = doc.getText(range)
-  const matches = findAll(/[\s:]class(?:Name)?=['"`{]/g, text)
+  const matches = findAll(/(?:\b|:)class(?:Name)?=['"`{]/g, text)
   const result: DocumentClassList[] = []
 
   matches.forEach((match) => {